12V 4 Channel Relay Module With Optocoupler High Low Level Trigger Supported New
4,30 €
1 x 12V 4 Channel Relay Module With Optocoupler High and Low Level Trigger. Using SMD OPTOCOUPLER isolation, driving ability, stable performance ; trigger current 5mA;. Com with low short circuit, triggering the corresponding relay is low, while the high end of the short com high trigger.
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